Forum Discussion
Altera_Forum
Honored Contributor
14 years agoHello,
I am trying to make file transfers to a custom board which runs an MMU version of uClinux. I have tried both SCP (dropbear) and FTP, this last in various flavours (ftpget and ftpput or installing the fptd server and using a client on the pc). Inetd manages connections to servers. The link between the board and the PC is an RS-232 uart; the PPP between the two guys (board and PC) is alive: I can ping, I can telnet, I can connect using SSH. I can copy files from the PC to the board, even the copy of large files (some MB) takes minutes (like in the ancient 56k internet times). I fail at copying the data from the board to the PC. In particular, with FTP the connection throughput falls down and to copy some MB it takes hours. As side notes : 1) I am doing this with a custom uart component in the SOPC Builder beacuse with the Altera serial I noticed a lot of packet loss while pinging. This one does not lose packets. 2) The Nios2 (with MMU) processor runs at 80 MHz and executes from external DDR2 ram clocked at 160 MHz. 3) The git log for uClinux dist is dated Wed Mar 2 11:19:01 2011 4) The git log for linux-2.6 is dated Tue Sep 21 11:29:37 Any suggestions? If you need some more info, ask please. Regards, Gabriele